Disk storage case



FIG. 1 is a perspective view of a disk storage case showing my new design;

FIG. 2 is a left side elevational view thereof, the right side being substantially a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a disk storage case, as shown and described. 